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Friday, 17 October 2014

Methods to reduce Distribution Losses

What is Transmission & Distribution (T&D) Losses?The
losses occurring in the transfer of power from the generator to the end
consumer is known as Transmission and Distribution (T&D) losses. Apart from
T & D losses there are commercial losses too and therefore, the concept of
Aggregate Technical and Commercial (AT & C) loss was introduced which truly
reflects the technical as well as commercial losses in the whole electrical network.

Value of AT & C Losses at various levels:The
AT & C losses vary in various Indian states from 20 to 45% because of the
difference in load density, type of network (urban or rural lines),
pre-dominant sub-transmission voltage, voltage of supply, geographical size of
the area etc. Other factors such as inadequate design, monetary investments and
bad maintenance of the system over the years contribute to higher losses.

Nearly
8% of the total AT & C losses take place above 33 kV level and the rest do
happen below 33 kV. Methods to reduce AT & C Losses:Aggregate Technical and Commercial (AT & C) loss of 20 to 45% for any state is very much higher from any international standard and has to be curtailed down.

The various methods
that can reduce these losses are:

1.Installation of static VAr
controller in the distribution system. Switchable shunt capacitors at the
sub-station or on lines can be very useful in providing the required reactive
power.

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About Me

Hello, I am Manoj Nair, specialized in Heavy Electrical Equipment (M-Tech). Also Life Member of ISTE and Associate Member of IE(India).

Currently I am working as Consultant in the field of Electrical Distribution and Energy Conservation. Also worked as Faculty in Electrical Engg, engaged in teaching post graduate and under graduate students of Electrical & Electronics engineering. I have authored/co-authored 8 books on various subjects of electrical engineering.

Also worked in Electric Utility as an engineer and handling the various jobs related to installation and maintenance of distribution lines, transformers and the metering equipments.

In the free time I switch over to blogging, discussions related to power system, developing MATLAB coding for problems related to power system.